Part
3
Silent
Spring was based on Carson’s understanding of biology and how
natural systems work. Her observations of the disappearance of birds and other
living organisms were related to the concept of biological magnification.
Explain and illustrate this concept to your students. Biological magnification
is the process whereby certain substances such as pesticides or heavy metals
move up the food chain, work their way into rivers or lakes, and are eaten by
aquatic organisms such as fish, which in turn are eaten by large birds, animals
or humans. The substances become concentrated in tissues or internal
organs as they move up the food chain.
1.
Research and illustrate another example of biological
magnification. Make an illustration that depicts the concentration of their
substance through a food chain and its consequences. Add your drawing to your
blog site. (2 points)
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